.header {
    height: 100vh;
    padding-top: 72px;
}

.header.slogan {
    background-size: cover;
    background-repeat: no-repeat;
    background-position: center;
    background-attachment: scroll;
    background-image: url(../../img/banner/slogan.png);
}

.nav {
    height: 60px;
    width: 100%;
    position: fixed;
    top: 0;
    background-color: #fff;
    overflow-x: auto;
}

.nav > img {
    cursor: pointer;
    height: 30px;
    margin: 15px 0 15px 20px;
    float: left;
}

.nav banner {
    color: #000;
}

.nav banner img {
    float: right;
    cursor: pointer;
    height: 30px;
    margin: 15px 25px 15px 10px;
}

/* 小于 350px 时 */
@media all and (max-width: 350px) {
    .nav > img {
        height: 20px;
        margin: 20px 0 20px 20px;
        float: left;
    }

    .nav banner img {
        height: 20px;
        margin: 20px 25px 20px 10px;
    }
}

/* 小于 270px 时 */
@media all and (max-width: 270px) {
    .nav > img {
        height: 10px;
        margin: 25px 0 20px 25px;
        float: left;
    }

    .nav banner img {
        height: 10px;
        margin: 25px 25px 25px 10px;
    }
}

/* 小于 170px 时 */
@media all and (max-width: 170px) {
    .nav > img {
        height: 6px;
        margin: 27px 0 20px 27px;
        float: left;
    }

    .nav banner img {
        height: 6px;
        margin: 27px 25px 27px 10px;
    }
}

.nav ul {
    display:  none;
}

#aside {
    background-color: #fff;
    width: 100vw;
    height: 100vh;
    position: fixed;
}

#aside div {
    height: 44px;
}

#aside div img {
    margin: 15px 25px 15px 0;
    float: right;
}

#aside .asideItemWrap {
    margin-top: 37px;
    margin-left: 40px;
}

#aside .asideItemWrap a {
    display: block;
    margin-bottom: 40px;
    font-size: 32px;
    color: #5a5a5a;
}

#aside .asideItemWrap a:hover {
    color: rgb(1, 170, 228);
}

/* 底部 */

.footer {
    background-color: #fff;
    font-size: 12px;
    line-height: 90px;
    text-align: center;
    height: 90px;
    color: #5a5a5a;
}

.footer span {
    display: none;
}